谷物废弃物的固态发酵提高了Novacetimonas sp. 细菌纤维素生产的生物可用性和产量. 隔离 隔离 隔离
Shriya Henry1, Sushil Dhital2, Huseyin Sumer1
1Department of Chemistry and Biotechnology, Swinburne University of Technology, Hawthorn, Melbourne, VIC 3122, Australia.
Foods (Basel, Switzerland)
|October 16, 2024
概括
这项研究使用真菌固态发酵 (SSF) 将谷物废物转化为细菌纤维素 (BC). 预处理的米显著提高了BC产量,降低了生产成本,提供了一个可持续的循环经济解决方案.
科学领域:
- 生物技术是生物技术.
- 材料科学 材料科学 材料科学
- 可持续化学 可持续化学
背景情况:
- 谷物加工的副产品,如大米和谷物粉是未充分利用的资源.
- 细菌纤维素 (BC) 是一种可持续的生物材料,具有多种应用.
- 开发成本效益高的BC生产方法对于其更广泛的采用至关重要.
研究的目的:
- 通过固态发酵 (SSF) 研究谷物废物的生物转化为细菌纤维素 (BC).
- 评估米和谷物灰尘的真菌预处理对BC产量和生产成本的影响.
- 从废弃基媒体生产的BC的物理化学特性.
主要方法:
- 使用了三种模具分离物用于米和谷物粉末的固态发酵 (SSF) 预处理.
- 培养的 *Novacetimonas* sp. 这种植物. 在标准的Hestrin-Schramm (HS) 介质和基于废物的介质上.
- 使用SEM,EDS,FTIR,XPS,XRD和TGA进行细菌纤维素的物理化学表征.
主要成果:
- 通过SSF预处理的米通过*Rhizopus oligosporus*获得了最高的BC (1.55 ± 0.6 g/L),比未处理的对照 (0.45 ± 0.1 g/L) 显著增加.
- 与标准的HS媒体相比,SSF流程将媒体生产成本降低了高达90%.
- 物理化学分析显示,BC的可比生物聚合物特性来自标准和废弃基媒体.
结论:
- 菌SSF是将谷物废物转化为有价值的细菌纤维素的有效策略.
- 这种方法提供了一个循环经济解决方案,减少浪费,提高谷物行业的可持续性.
- 该研究表明,从农业副产品中生产成本效益和可持续的BC的潜力.
相关概念视频
Microbial Fermentation
1
Fermentation is a crucial anaerobic metabolic process that enables microbes to derive energy from sugar without relying on oxygen or an electron transport chain. This process is fundamental to various biological and industrial applications and is classified based on the metabolic products generated.Role of Pyruvate in FermentationPyruvate and its derivatives serve as key electron acceptors in fermentative pathways. The oxidation of NADH to regenerate NAD+ is essential for the continuation of...
1
Microorganisms in Agriculture and Food industry
3
Microorganisms play a crucial role in agriculture and the food industry, contributing to soil fertility, crop protection, and food production. Their functions range from nitrogen fixation and biopesticide production to fermentation and food preservation, making them indispensable to sustainable farming and food safety.Role in AgricultureNitrogen-fixing bacteria, such as Rhizobium (symbiotic) and Azotobacter (free-living), convert atmospheric nitrogen into ammonia through biological nitrogen...
3
Environmental Applications of Microorganisms
3
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
3


